Nanogenerators: Fully Rollable Transparent Nanogenerators Based on Graphene Electrodes (Adv. Mater. 19/2010)

Choi, Dukhyun,Choi, Min-Yeol,Choi, Won Mook,Shin, Hyeon-Jin,Park, Hyun-Kyu,Seo, Ju-Seok,Park, Jongbong,Yoon, Seon-Mi,Chae, Seung Jin,Lee, Young Hee,Kim, Sang-Woo,Choi, Jae-Young,Lee, Sang Yoon,Kim, Jo WILEY-VCH Verlag 2010 ADVANCED MATERIALS Vol.22 No.19

<B>Graphic Abstract</B> <P>The cover shows an image of fully rollable transparent nanogenerators synthesized using chemical vapor deposition grown large-scale graphene sheets as transparent electrodes and piezoelectric ZnO nanorod arrays. Sang-Woo Kim, Jae-Young Choi, and co-workers report on p. 2187 the electrical and structural stability of the nanogenerators, with excellent charge scavenging performance under external mechanical loads such as bending and rolling. This study shows that graphene-based nanogenerators are very promising for self-powered rollable transparent device applications. <img src='wiley_img_2010/09359648-2010-22-19-ADMA201090066-content.gif' alt='wiley_img_2010/09359648-2010-22-19-ADMA201090066-content'> </P>

忠州牧 硏究 : 충주의 문벌을 중심으로 With Special Reference to the Distinguished Families in ChungJu

崔壹聖 忠州大學校 1998 한국교통대학교 논문집 Vol.33 No.1

Among the people who lived in Chungju during the three-state period and the unified Shilla period, the most distinguished ones would be Uh Ruk, Kang Su, and Kim Sang. Uh Ruk was a court musician and Kim Sang was one of the most distinguished scholoars in that period. They are considered to be naturalized people from Kaya. In the 19th year of King Jinheung regime, sons of the noble and the people of the Yukbu were forced to move to Chungju. Kim Sang, who was born in the 10th year of King Kyungduk Regime, was a very famous calligrapher. The value of his works was fully recognized even by the nobility of the Koryo Dynasty. Because such famous musicians and calligraphers lived in Chungju, people regarded Chungju as an important city in culture and art as well as in politics and national defense. During the Koryo Dynasty, the influential noble families were the ones whose family names were Seo, Seok, Choi, Yu, Kang, Yang, Jin, Ahn, and Park. Especially, among them, the families of Yu, Choi, Yang and Ji were recorded in the literature for their production of brilliant and talented people. As to the Yu family, along with Yu Keung-Dal's daughter who became the third queen consort of King Taejo, such distinguished people as Yu Kwon-Yul, Yum Sang, Yu Shin-Sung enhanced the family's reputation. The Choi family of Chungju also produced famous government officials, for instance, Choi family of Chungju also produced famous government officials, for instance, Choi Hong-Sa and Choi U-Chung. In addition, the Yang family of Chungju produced Yang Won-Jun and Yang Yeo-Kong both of whom later became famous government officials. People of the Ji family, especially Ji Yun, Ji Yong-Su, and Ji Yong-Gi, occupied high-ranking positions of the government for their military achievements. Those distinguished families of Chungju, on the basis of their local political power, made an influential group even in the central government during the Koryo dynasty.

논문 : 해외공연이 최승희의 예술세계에 미친 영향

최성옥 ( Sung Ok Choi ) 한국무용기록학회 2010 무용역사기록학 Vol.20 No.-

본 논문은 해외공연활동이 최승희의 춤 정체성에 어떠한 영향을 주었고, 더 나아가 한국무용계의 발전에 어떠한 기여를 했는지를 연구하는데 그 목적이 있다. 일제강점기라는 시대에 무용 활동을 하면서 최승희는 한국인들의 민족적 아픔을 담아 민족적인 감정을 표현하였으며, 그녀가 민족을 대표하는 작품을 창작 할 때 사상적인 개념을 구축하기 위한 밑거름이 되었다. 또한 최승희의 스승인 이시이 바쿠의 영향으로 한국전통무용을 토대로 한국무용을 창작하게 되었다. 최승희는 1938년부터 1940년까지 미국, 유럽, 남미를 순회하면서 해외활동을 한 결과 한국 고유의 전통적인 소재로 창작한 한국무용이 외국에서는 더 많은 관심을 보인다는 것을 인식하고 한국의 전통무용을 최승희만의 독특한 체계로 확립시켜 새로운 무용으로 창작해나갔으며, 넓은 의미로 동양무용수립을 창조하고자 하였다. 또한 최승희는 ``최승희 동양 발레단``의 결성을 시도하고 한국에 발레무용을 창작하여 무용연구소를 설립하고자 하였으나 사회적인 상황으로 인해 실패되었다. 최승희의 미주순회공연이 그녀의 무용예술세계에 많은 영향을 주게 되었다는 것을 본 연구를 통해 알게 되었다. 미국과 유럽의 순회공연에서「보살춤」과「초립동」은 민족적 성격을 지닌 작품으로써 서양적인 발레나 현대무용 형식에 민족적인 내용을 소재로 한 작품에 더 관심을 가졌으며, 남미 순회공연에서는 한국적인 춤사위와 외국무용의 조화로움 속에 표현된 동양적인 신비함과 아름다움에 매료되었다. 이처럼, 최승희는 해외공연을 통해 서양에서는 한국적인 춤에 더욱 관심을 갖는다는 것을 인식하고, 한국 무용의 세계화를 위해 한국의 근대무용에 기틀을 세워 전통무용을 현대화시킴으로써 무용사에 큰 공을 세운 인물이다. 또한 그녀만의 예술관을 가지고 끊임없는 노력으로 많은 작품을 창작하여 한국의 무용계의 발전에 이바지하였다. 최승희는 일제강점기라는 혼란한 시대에 한국무용계의 근대화를 추구하여 신무용을 창시하였으며, 무용을 예술의 한 분야로 자리매김 할 수 있는 발판을 만들어 주었다. 예술인들을 천시하여 무용을 독립된 예술로 인정하지 않았던 시대에 한국 무용계를 구축한 인물이었으나, 일제강점기 시대를 지내는 과정을 걸쳐 월북함으로써 친일의 논란에서 벗어나지 못하고 분단 상황과 이데올로기라는 시대에 의해 그 존재가 묻히게 되었다. 하지만 이러한 둘러싼 논란에도 불구하고 민족적인 최승희는 얼이 담긴 한국을 대표 할 수 있는 한국적인 무용을 창시하여 세계적인 예술로 승화시킨 인물이다. 한국무용역사에 큰 획을 그은 최승희의 업적은 사회적인 정치적 상황에도 불구하고 인정되어야 할 것이다. This study aims to examine how much Ishii Baku and overseas dance performance tours had impacted Seung-Hee Choi`s choreography and her unique dance styles. This study also tries to show her contribution to the modernization of Korea`s traditional dance. During the Japanese colonial era, Seung-Hee Choi showed the pain of the Korean people who had lost their nation through dancing. This nationalistic aspect was the foundation of her choreography and her dance styles. She was influenced by Ishii Baku who was her Japanese dance teacher. With his influence, she choreographed the new form of Korean modern dance styles by incorporating Korean traditional dance movements to her own creative style. After overseas tours of dance performances in the U.S.A., Europe, and South America from 1938 to 1940, Seung-Hee Choi realized that her dance styles incorporating traditional Korean dance movements are more acclaimed by the foreigners than the domestic audiences. Thus, she decided to develop her own unique dance styles more incorporated with traditional Korean dance. Furthermore, she wants to establish East Asian dance styles. Choi tried to establish "Choi Seung-Hee East Asian Ballet Foundation" for a systematic study of Asian dances. However, her venture failed because the social and political milieu was not conducive at that time. This study confirms that Isihe Baku and the American dance tour had significant influences on building Choi`s own dance styles. In the American and European dance tours, she introduced "Bosalchum" and "Choripdong," which showed Korean national emotions and attracted the interest of Western ballet groups that tried to incorporate the nationalistic materials into the modern dance. During the South American dance tour, she expressed mistery and beauty of Asia by harmonizing Korean traditional dance movements and Western dance styles. After she recognized that traditional Korean dance movement attracted foreign interests, she devoted herself to internationalize Korean modern dance, which eventually became the foundation of Korean modern dance and modernized Korean traditional dances. With her own artistic ideas, she constantly created dance works. Therefore, she deserves to be recognized as one of the most significant figures in Korean dance history in spite of the political ideology and her achievements should be taught to the young generation.

입제의 수면처리에 의한 주요수도해충의 동시방제

최승윤,배상희,송유한,Choi Seung Yoon,Bae Sang Hee,Song Yoo Han 한국응용곤충학회 1970 한국식물보호학회지 Vol.9 No.1

본 시험은 유기인계 살충제인 Terracur P입제 및 Lebaycid 입제와 유기염소계 살충제인 상감마입제$(\gamma-BHC 입제)$를 수면시용 하였을때 수도요해충인 이화명충, 끝 동매미충, 애멸구 및 흰둥멸구에 대한 동시방제가능성과 방제적기를 구명하고 약제간의 방제효과를 비교코저 실시하였다. 얻어진 시험결과는 다음과 같다. 1) 약제처리후 부화직후 이화명충 접종 시험에 있어서 상감마와 Terracur P는 높은 살충율을 보였으나 Lebaycid의 살충율은 낮았다. 約 $50\%$ 살충력 잔효일수에 있어서 상감마는 8-14日이었고 Terracur P는 6일간이었다. 2) 당초 계획된 방제적기에 관한 정보는 얻을 수 없었다. 즉 주어진 일간격이 좁아 유의한 차를 얻을 수 없었다. 3) 1,2화기 이화명충에 대한 방제효과는 Terracur P=상감마>Lebaycid의 순이었다. 4) Terracur P와 Lebaycid 입제의 처리는 끝동매미충의 방제효과가 좋았으나 상감마$(\gamma-BHC 입제)$의 방제효과는 기대할 수 없었다. 끝동매미충에 대한 Terracur P와 Lebaycid입제의 잔효력은 30일 이상이었다. 5) 애멸구와 흰등별구에 대한 시험은 충의 서식밀도가 낮기 때문에 약제간 방제효과를 얻을 수 없었다. 6) 공시약제중 Terracur P와 Lebaycidd입제는 이화명충과 끌동매미충의 동시방제제로서 사용할 수 있을 것 같다. This experiment was conducted to find out the simultaneous control effect of granulated insecticides on the several major rice insect pests in Korea. The granulated insecticides used were Terracur P$5\%$ (one of the phosphoric insecticides), Lebaycid $5\%$, and Sang-gamma (gamma-BHC) $6\%$. Those insecticides were broadcasted by hand on the paddy field at the ratio of 3kg. in June and 4kg. in August per 10 a, and the date of insecticidal application was based on the maximum moth occurrence of the rice stem borer in 1969. The rice insect pests tested in this study were rice stem borer (Chilo suppressalis W.), green rice leafhopper (Nephotettix bipunctatus cincticeps U.), smiller brown planthopper (Laodelphax striatellus F.), and white back planthopper (Sogotella furcifera H.). For the study of residual effectiveness of the insecticides, the rice stem borer larvae just hatched from the eggs were installed on the sheath of rice plants collected from the paddy field after insecticidal treatment, and the mortality was made at 48 hours after installation. High mortality was observed in Terracur P and Sang-gamma treatments and low mortality in Lebaycid treatment. The duration of residual effects giving about 50% mortality was about 14 days in Sang-gamma and about 6 days in Terracur P treatments. The study on the effectiveness of the insecticides to the rice stem borer in the paddy field was made by the number of dead blades and white heads of the rice plants injured by the larvae, and the number of survival larvae in the straws after crop harvest. The order of insecticidal effectiveness to the rice stem borer was Terracur P=Sang-gamm>Lebaycid. The study on the effectiveness of the insecticides to the leafhoppers and planthoppers in the paddy field was made by the population density by sweeping (5 times) at the given day intervals after treatments. Terracur P was highly effective for the control of the green rice leafhoppers and Lebaycid was moderately effective, but Sang-gamma seemed not to be effective. The effectiveness of the insecticides tested to the planthoppers was not clear, and it seemed to related with the low insect population density. Study on the determination of proper timing of insecticidal application was not also made clear, and it seemed to be short in the range of day intervals in the insecticidal application. For the study on the control effects of the rice insect pests, rice yield per 100 hills per plot was observed. There was no statistically significant difference among the treatments in rice yields, but the order of yield (Terracur P>Sang-gamma>Lebaycid>Control) was paralleled with the tends of control effects above mentioned. In a view point of simultaneous control of the rice stem borers and green rice leafhoppers by the application of granulated insecticides, Terracur P and Lebaycid were more effective than Sang-gamma which have been used.

최씨 훅을 이용한 복강경 버찌씨 수술

김영혜 ( Young Hye Kim ),박준선 ( Jun Seon Park ),최상준 ( Sang Joon Choi ),송창훈 ( Chang Hoon Song ),한세준 ( Sei Jun Han ),정혁 ( Hyuk Jung ) 대한산부인과학회 2006 Obstetrics & Gynecology Science Vol.49 No.6

목적: 버찌씨 수술은 복압성 요실금 수술에 효과적인 수술로 여겨져 왔다. 요실금의 원인이 내인성 요도 괄약근의 결손소견 없이 요도의 과운동성으로 인한 경우 버찌씨 수술이 일반적으로 추천되어진다. 본 연구에서는 복강경 버찌씨 수술에서 최씨 훅의 유용성에 대해 알아보고자 하였다. 연구방법: 2000년 10월부터 2005년 3월까지 본원에서 복강경 버찌씨 수술을 시행받은 47명의 환자를 대상으로 하였다. 27명은 고전적 복강경 버찌씨 수술을 시행하였고 20명은 내골반 근막을 Cooper 인대를 부착하는데 유용한 본원에서 고안한 최씨 훅을 이용하여 복강경 버찌씨 수술을 시행하였다. 결과: 고전적 복강경 버찌씨 수술을 시행한 군과 최씨 훅을 이용한 복강경 버찌씨 수술을 시행한 군의 평균 나이, 분만력, 폐경률, BMI는 두 군간에 통계학적으로 유의한 차이를 보이지 않았다 (p>0.05). 수술 시간은 고전적 복강경 버찌씨 수술은 90.52±15.32분, 최씨 훅을 이용한 복강경 버찌씨 수술은 38.50±10.14분으로 최씨 훅을 이용한 경우 수술시간이 통계적으로 유의하게 짧았다 (p<0.05). 두 군간에 재발률 및 합병증 발생은 통계적 유의성을 보이지 않았다 (p>0.05). 결론: 본 연구에서 본원에서 고안한 최씨 훅을 이용하여 복강경 버찌씨 수술을 시행한 결과 수술 시간을 단축시킬 수 있었으며 수술 효과는 기존 방법과 동일하게 관찰되었다. 이에 최씨 훅은 복강경 버찌씨 수술에서 사용할 때 집도자의 봉합 과정을 단순화시켜 수술 시간을 단축시키므로 복강경 버찌씨 수술에 용이한 기구이다. Objective: Burch operation has been effective method for the treatment of stress incontinence. Burch operation is a well-accepted procedure for treating stress urinary incontinence secondary to urethral hypermobility without intrinsic sphincter deficiency and is the reference standard with which other procedures are compared. This study is to evaluate the effectiveness of the Choi`s hook in laparoscopic Burch operation. Methods: This study included 47 patients who had undergone laparoscopic Burch operation from October 2000 through March 2005. Of these 47 patients, 27 patients underwent traditional laparoscopic Burch operation (Group 1) and 20 patients underwent laparoscopic Burch operation with Choi`s Hook on anchoring the endopelvic fascia to the Cooper`s ligament (Group 2). Results: The mean age of patients of Group 1 was 55.6±9.37 years of age and that of Group 2 was 56.0±5.93 years of age. There is no difference in the mean age of patients (P>0.05). The mean operating time was 90.5±15.32 minutes for Group 1 and 38.5±10.14 minute for Group 2. The mean operating time was shorter in Group 2 than Group 1 (P<0.05). There was no difference in recurrence rate and complication rate between Group 1 and Group 2 (P>0.05). Conclusion: We performed laparoscopic Burch operation with the Choi`s Hook on anchoring the endopelvic fascia to the Cooper`s ligament. When we compared traditional laparoscopic Burch operation with laparoscopic Burch operation with Choi`s Hook, we could shorten the operation time using the Choi`s Hook.

실용음악 전공 학생들의 발성치료 전후 성대 및 음성 특성 비교

황연신,심미란,김철준,최용석,김상연,최찬호,선동일,Hwang, Yeon Shin,Shim, Mi Ran,Kim, Chul Jun,Choi, Yong Suk,Kim, Sang Yeon,Choi, Chan Ho,Sun, Dong Il 대한후두음성언어의학회 2016 대한후두음성언어의학회지 Vol.27 No.2

Background and Objectives : Many students major in applied music singing have various difficulties in phonation when they sing or perform. But the studies about this cause are lack. The purpose of this study is whether singing voice therapy based on vocal music is effective or not to applied music singing students that have difficulties in phonation. Materials and Methods : Singing voice therapy program had been done to 8 students major in applied music singing during 7 weeks. We did laryngeal stroboscope, perceptual, acoustic and aerodynamic examination before and after singing voice therapy to this students. And we studied post examination results have differences or improvements compared to pre examination results. Results : Four male students don't have effective improvement after singing voice therapy but they shows slight improvement in aerodynamic examination values compared to pre examination values. Four female students shows improvement in aerodynamic examination values and pitch range increasing. Above all, one student's vocal nodules disappeared after singing voice therapy. Conclusion : Singing voice therapy based on music singing is very effective to the students major in applied music singing. Above all, their curriculum in applied music singing should include phonation training based on music singing before training perform and technic practices.

新羅都城의 展開過程에 관한 都市史的 硏究(1)

최창길,예명해,足立裕司,신상화 대구대학교 과학기술연구소 1998 科學技術硏究 Vol.5 No.3

The conclusion drawn from this study can be summarized as follows. The origin of the Silla Capital Castle can be found from the Guem Sung (Golden Castle) which was built in 37 Hyuk Gu Sae year after the formation of Sa Ro Kook. But the Guem Sung during Sa Ro Kook era was not enough to be a Capital City in it's form and size. It was only a castle for the King. The first real formation of what we call city today was gradually progressed while the construction of the royal regime which brought the cetralization of power. Especially, before Ja Bi Ma Rip Gan Chinese capital castle system did not influence directly to Silla Dynasty. But, after that, they started to name the districts, specified the market place as an ecomonical district, built Buddhist temples, constucted East Distirict, West Distirict, and South Distirct around Wol Sung which is the Capital Castle. By doing this, the formation of ancient city was possible. Na Sung was not there around the King's City, they built San Sung instead. This kind of spacial allocation made outline of Capital Castle. After the unification of ancient Korea which was then divided into three by Koguryu. Beakjae and Silla, construction of the city was influenced by China. They followed the Chinese city system as a model and gradually adopted the model. During King Sun Duk era, Jong Myo and Sa Jil, which came from Chinese ceremonial space was built inside of Capital Castle. This means the completion of the city at that time.

Polyphosphate가 Porphyromonas endodontalis의 성장에 미치는 영향에 관한 연구

최성백,최호영,민병순,박상진,이진용,최기운 大韓齒科保存學會 1998 Restorative Dentistry & Endodontics Vol.23 No.1

Polyphosphate has been used to prevent decomposition of foods and has been shown to have inhibitory effect on the growth of gram positive bacteria. The purpose of this study was to evaluate the effect of polyphosphate on the growth of Porphyromonas endodontalis, a gram negative endodontopathic bacterium. Porphyromonas endodontalis ATCC 35406 was grown in the presence of polyphosphates with different chain lengths. Inhibitory effect of each polyphosphate which was added at the beginnig or during the culture, was determined by measuring the optical density of the bacterial cell at 540nm and by viable cell count. The results from this study were as follows : 1. Polyphosphates were shown the growth inhibition of the Porphyromonas endodontalis. 2. The minimal inhibitory concentration(MIC) of polyphosphate was observed to be 0.04%. 3. Polyphosphates with chain lengths of 25 and 75 demonstrated the greatest inhibitory effect on the growth of Porphyromonas endodontalis. 4. Polyphosphates are bactericidal to Porphyromonas endodontalis, demonstrating the growth inhibition of the bacterium. The overall results suggest that use of polyphosphate may affect the growth of Porphyromonas endodontalis. Further studies will be needed to confirm the effect of Polyphosphate.

Study on Leaf Production of Angelica acutiloba by Mulching with Polyethylene Film

Choi,Seong-Kyu,Yun,Kyeong-Won,Chon,Sang-Uk,Seo,Young-Nam,Seo,Kyoung-sun,Kwon,Byung-Sun 한국자원식물학회 2003 Plant Resources Vol.6 No.3

This study was conducted to produce effectively more leaves of Angelica acutiloba through year-round production system by using various mulching materials and polyethylene(PE) tunnel. Soil temperature by covering treatment was higher in PE mulching and PE tunnel than in rice straw mulching, especially showing the highest temperature in PE tunnel from April through May. Water content of soil was higher in PE mulching than in non-mulching. Leaf production of Angelica acutiloba through year-round production showed the highest in PE tunnel and root production in PE mulching. These results suggest that leaf production of Angelica acutiloba can be maximized through PE tunnel cultivation system.

한국 자의식 소설의 작중인물 연구 : Specially with Reference to the Works of Choi, Myung-Ik 崔明翊 작품을 중심으로

崔賞潤 東亞大學校 大學院 1984 大學院論文集 Vol.9 No.-

Characters in the novel are created through the combination of the novelists's creativity and his milieu he lives in. Therefore they are the novelist's other self and the projections of his society as well. From this viewpoint the writer of this thesis attempted to bring to light the works of Choi Myung-Ik against the past social background of Korea under the Japanese rule. The conclusions derived are as follows: 1. The background and the atmosphere of Choi's novels coincide with the dark, gloomy and melancholic air of the colonial days. These elements no doubt affected the characterization in his novel. 2. The discrepancy between the intellectual level of the characters in the novel and their standard of living is enormous. This hisharmony persisting in their high intellectual pursuit ('high though') and their privation ('low living') bring about the characters' neurotic symptoms of anxiety, melancholy, helplessness and alienation. This may be said to have reflected the general atmosphere of the intelligentsia of those depressed age. 3. The consistent use of the Chinese character '-'(meaning 'first, foremost, supreme' etc.) in the first names of the characters seems to suggest the elitist sense of the intelligentsia in spite of their 'low living'. This also reflects one of the distinctive qualities the 'self-conscious' characters possess, which, accordingly, must be interpreted as one of the important aspects of the intelligentsia of those days. 4. The subjective viewpoint (that is, the omnipotent viewpoint of the writer and the first person viewpoint) is employed throughout to describe the inner world of the 'self-conscious' characters. 5. The common features of the protagonists can be said to be the neurotic symptoms which come from the complex factors, such as the environment, the intellectual level, the standard of living and the viewpoint of the characters. The most not able of these symptoms are anxiety neurosis and depressive newrosis.